The effect of micro-wave(Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz (100 cm) and 300 GHz (0.1 cm). This broad definition includes both UHF and EHF (millimeter waves), and various sources use different boundaries. In all cases, microwave includes the entire SHF band (3 to 30 GHz, or 10 to 1 cm) at minimum, with RF engineering often restricting the range between 1 and 100 GHz (300 and 3 mm).) and ultrasonic (An ultrasound-based diagnostic imaging technique.Ultrasound is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz).Ultrasonic is an adjective referring to ultrasound.) on crystals of ammonium paratungstate(APT) was investigated. Crystalline particle and style were discussed respectively.The results show that the distribution of crystalline granularity (

Crystallinity refers to the degree of structural order in a solid. In a crystal, the atoms or molecules are arranged in a regular, periodic manner. The degree of crystallinity has a big influence on hardness, density, transparency and diffusion. In a gas, the relative positions of the atoms or molecules are completely random. Amorphous materials, such as liquids and glasses, represent an intermediate case, having order over short distances (a few atomic or molecular spacings) but not over longer distances.) with micro-wave and ultrasonic became narrower and the crystal was more homogeneous and smooth. Micro-wave and ultrasonic had no effects on the crystalline styles of APT. The d value with micro-wave and ultrasonic is more tallied with that in the past studies. It proves that ultrasonic is beneficial to preparing APT crystals.